baber/WOPTO huggingface dataset:
Patent GB-178750-A (GB)
Title: Improvements relating to the making of cores for cylindrical castings
IPC: B22C13/14
Filed: 1921-06-02
Abstract: 178,750. Ritchie, Hart, & Co., Ltd., and Rudd, T. W. June 2, 1921. Core-making.-Cores are made on a rotating-bar driven by a chuck and headstock at one end and supported by a centre 2 at the other. A strickle is mounted in clamps at 9. The headstock spindle is driven through change speed gearing 6 and friction gearing 7, the driven friction wheel being on a shaft mounted in eccentric bearings controlled by a treadle 8 running the full length of the machine, the friction drive being operative only when pressure is applied by the treadle.
Patent GB-175569-A (GB)
Title: Improvements in or relating to golf ball tees
IPC: A63B57/00
Filed: 1921-06-02
Abstract: 175,569. Byrne, E. J. June 2, 1921. Tees.-Relates to a golf-ball tee of the type comprising a rubber base on which is a cup to support the ball and an anchor weight attached to the base by a rivet or stud. The present invention consists in means for reinforcing the cup portion and for preventing the anchor weight from breaking away. Fig. 1 shows a tee reinforced with insertion or cloth coated with rubber 3, while the anchor weight is embedded in the base 1 and may also be covered with insertion 5. In a modification, Fig. 2, the reinforcement takes the form of an annulus 3<1>, while the anchor weight is in the form of two discs 4 connected by a stud 7 and separated from the base 1 by layers of insertion 8.
Patent GB-774748-A (GB)
Title: Absorbent article and support therefor
IPC: A61F13/38
Filed: 1955-05-27
Abstract: 774,748. Surgical swab holders. JOHNSON & JOHNSON. May 27, 1955 [June 1, 1954], No. 15412/55. Class 81(2) A swab holder comprises a stick 11, of synthetic resin material, having barbs 20 at its end to secure a quantity of cotton wool wound round it. The end 12 is preferably of reduced diameter, compared with the main body of the stick, and the barbs may be in two diametrically disposed rows, the rows being staggered, orin four rows equally spaced around the circumference. Preferably both ends of the stick are adapted to receive swabs.
Patent GB-587787-A (GB)
Title: Improvements in homogenising apparatus
IPC: B01F5/06
Filed: 1944-08-12
Abstract: <PICT:0587787/III/1> A homogenizer comprises a cylindrical casing A and a central stationary shaft D on which are mounted a series of discs which are alternately, B, fixed to the shaft and perforated, and C, loosely mounted and slotted obliquely and radially from the periphery.  The discs C are preferably mounted by means of ball or roller bearings C1 on extensions of the hubs of discs B. The perforations of successive fixed discs B and the slots of successive loose discs C are preferably inclined in opposite directions from the shaft axis.  A fixed disc E may be provided at the outlet A2 having perforations e closed by balls e1 pressed by springs f held in a fixed disc F so that liquid can pass only above a given pressure. The outer faces of the slots of discs C may be enlarged.
Patent GB-817924-A (GB)
Title: Mixing apparatus
IPC: D01H1/38
Filed: 1957-05-15
Abstract: 817,924. Continuous-discharge mixing- machines. MOBAY CHEMICAL CO. May 15, 1957 [May 15, 1956], No. 15445/57. Class 86 Mixing apparatus particularly for the production of plastics containing urethane groups comprises a mixing chamber 9 and a stirrer mounted on a shaft 1 and having an upper tapering section 2, a cylindrical middle section 4 having a plurality of teeth 6 formed in rings spaced by grooves 5; and a bottom conical section 7; the chamber 9 being so shaped that only a very small gap exists between its wall and the sections 4, 7, but a substantially larger gap exists between the wall and the section 2, and provided with inlets 12a-d, (only 12c, 12c being shown) for the supply of components to be mixed into the space opposite the section 2, and an outlet 13 at the extremity of the section 7. The section 2 may be provided with guide vanes 3 and the section 7 may be provided with guide vanes 8. One of the inlet openings consists of a nozzle for spraying one of the components in to the chamber 9 under high pressure. Specifications 769,680 [Group IV(a)] and 769,682 are referred to.
Patent GB-203057-A (GB)
Title: Improvements in or relating to cash-registering machines
IPC: G06C7/10
Filed: 1922-06-01
Abstract: 203,057. Molnßr di Nagymagyar, L. June 1, 1922. Cash registers with operating-means.-In a differentially-set crank-operated machine, totalizer-actuating racks 3 are pivoted at 2 to the setting-levers 1 loose on the operating-shaft 6 and are adapted to be successively raised into engagement with the totalizer 4 bv means of levers 31 controlled by cams 34 on discs 20 secured to the crank-shaft. The racks also simultaneously engage a pin 11 on the corresponding compound toothed sector 8, 12 actuating the indicator drum 10 and type pinion 13. When the operating shaft 6 is turned, a cam 24 on a fast disc 21 oscillates a spindle 22 to rock arms 25, 17 and thus return the sector 8, 12 from its previous setting and so restore the indicators and type carriers to their initial positions. Subsequently, a cam 29 on each disc 20 rocks a stirrup 27, 28 loose on spindle 22 so that the limb 28 bearing against the arm 15 of a two-armed lever 15, 16 rotates this to restore the setting lever 1 to normal position, the engagement of rack 3 with the totalizer and pin 11 having meanwhile been effected by the cam 34. The cams 29, 34 are displaced around the various discs 20 to effect actuation seriatim.
Patent GB-552305-A (GB)
Title: Improvements relating to percussive drills
IPC: E21B17/04
Filed: 1941-12-03
Abstract: 552,305. Percussive tools. CLIMAX ROCK DRILL & ENGINEERING WORKS, Ltd., and ST. STEPHENS, R. DE H. Dec. 3, 1941, No. 15591. [Class 124] The steel a of a rock drill or like percussive tool is provided with a coating of brass to which a collar b consisting wholly or mainly of natural or synthetic rubber is bonded by vulcanization under pressure at a raised temperature. The brass coating may be applied by electro-deposition, or by means of a spray pistol. The collar may be reinforced by sheet metal and caps c, d, Fig. 2, spaced metal washers g, Fig. 4, or metal particles mixed with the rubber.
Patent GB-1358636-A (GB)
Title: Rutile titanium dioxide
IPC: C09C1/00
Filed: 1972-04-05
Abstract: 1358636 Modified TiO 2  BRITISH TITAN Ltd 9 March 1973 [5 April 1972] 15726/72 Heading C1N [Also in Division C5] A TiO 2  comprising microcrystalline rutile TiO 2  having an average particle size of 10-100 Š together with larger size rutile particles may be prepared by mixing rutile TiO 2  particles with a solvent therefor, e.g. H 2 SO 4 , dissolving TiO 2  from the surfaces of the particles, and cooling to precipitate the microcrystalline TiO 2 . The core particles preferably have an average size of 0À2-0À25 Á. The initial TiO 2  may be calcined sulphate process TiO 2 , chloride process TiO 2 , or natural mineral rutile. The H 2 SO 4  preferably contains (NH 4 ) 2 SO 4  and may be heated with the TiO 2  at 85-205‹ C. and then allowed to cool naturally or quenched. The product may be filtered, boiled with NaOH, washed with water, dried at 120‹ C. and optionally fluid energy milled. It may be heated at at least 300‹ C., e.g. 400‹ C., to increase the surface area, e.g. to 210 m.<SP>2</SP>/g.
Patent GB-1041602-A (GB)
Title: Apparatus for recovering an unburnt waste gas in an oxygen top-blowing converter
IPC: C21C5/40
Filed: 1963-04-22
Abstract: 1,041,602. Converter chimneys; removing waste products in industrial processes. YAWATA IRON & STEEL CO. Ltd., and YOKOYAMA ENGINEERING CO. Ltd. April 22, 1963 [May 2, 1962], No. 15762/63. Headings F4B, F4J and F4X. A converter chimney is provided with an inlet hood 3 in close contact with a converter mouth 2, the end part of the inlet hood having a coating 4 of acidic refractory material. An air-tight seal between the hood and the converter mouth is effected by a mechanism 8 comprising a movable skirt 10; a water sealed apron 9, a skirt operating cylinder 12 and a nozzle 11 through which an inert gas is pumped. The hood 3 is provided with cooling water pipes 7, hood pressure detecting holes 6 and a fluxing material charging port 6. The coating 4 may comprise silica bricks or a mortar including silica.
Patent GB-1476275-A (GB)
Title: Vehicle seats
IPC: B60N2/07
Filed: 1975-04-17
Abstract: 1476275 Slide rail for a vehicle seat C ROB HAMMERSTEIN GmbH 17 April 1975 [27 June 1974] 15818/75 Heading A4J A vehicle seat slide rail comprises on each side an outer rail 1 and an inner rail 2 held against relative movement by the engagement of a horizontally extending projection 7 with one of a number of notches in a rail 3 connected to the outer rail, the projection 7 being on a lever 6 pivotally connected about a horizontal axis 11 to a bearing support 10 fixed to the inner rail, and the levers on each side of the seat being inter-connected by a U-shaped stirrup 12 pivotally connected about the axis 11 once engaged with the underside of each lever. The U-shaped stirrup is preferably made of tubular metal, with the ends of the limbs 13 of the stirrup being flattened and  embraced by the levers 6 which are preferably of U-section. The two levers and the stirrup are biased towards the position in which the rails are locked by leaf-springs 8 and 17.
Patent GB-1075284-A (GB)
Title: Electrical insulating polyimide materials
IPC: H01B3/30
Filed: 1966-04-12
Abstract: A high M.W. product containing o-amido-carboxylic acid groups which can be converted to a polyimide by heat or subsequent chemical treatment is prepared by reacting at least one diprimary aromatic diamine with at least one aromatic dicarboxylic acid dicyclic dianhydride or a derivative thereof which reacts as the anhydride under reaction conditions and at least one aromatic cyclic tricarboxylic anhydride halide, e.g. trimellitic anhydride chloride. Reaction is carried out in a solvent, e.g. N,N-dialkylcarboxylic acid amide, N-methyl-2-pyrrolidone or dimethylsulphoxide, in which the o-amidocarboxylic acid containing productis soluble.  An acid acceptor, e.g. a tertiary amine or an inorganic base such as CaO or MgO, is present in the reaction. The product is obtained by precipitation using a non-solvent therefor, e.g. water.  The precipitated product is freed from residual solvent and surplus acid acceptor by washing with water. The aromatic dicyclic tetracarboxylic acid may be present in the reaction mixture in an amount up to 40% of the weight of the carboxylic acid anhydrides present.  Prior to precipitation the product may be treated with a dehydrating agent, e.g. a lower carboxylic acid anhydride which may be mixed with pyridine.  The product after precipitation may have an acid number <100. The product may be heated to a temperature up to 160 DEG  C. prior to precipitation.  A small excess, e.g. 1 to 10%, of the diprimary aromatic diamine, e.g. 4,41 - diaminodiphenylmethane, may be used over that equivalent to the cyclic carboxylic anhydride and acid chloride groups present in the reaction mixture.  Solutions of the product may be used as electrically insulating varnishes by removing the solvent and thermally treating the coated or impregnated articles.ALSO:An insulating varnish which may be coated on copper wires is a soluion, e.g. in N-methyl pyrollidone of a high M.W. product containing o-amido carboxylic acid groups which can be converted to a polyimide by heat or subsequent chemical treatment. The product is obtained by reacting at least one aromatic dicarboxylic acid dicyclic diamide or a derivative thereof which reacts as the anhydride under reaction conditions and at least one aromatic cyclic tricarboxylic anhydride halide, e.g. trimellitic anhydride chloride.  Reaction may take place in a solvent in the presence of an acid acceptor and the product which may have an acid no. <100 is precipitated by addition of a non-solvent, e.g. water. The resultant product is redissolved in solvent to form the varnish. In an example a 25% solution in N-methyl pyrollidone of a product obtained by 4,4\sv-diaminodiphenylmethane with pyromellitic acid dianhydride and trimellitic acid anhydride chloride, having a viscosity of 2000 cp is coated on a 1 mm diameter copper wire in a horizontal wire-varnishing furnace operated at 480 DEG C.  The transfer rate of the wire being 4.5 m. per minute and the resultant varnish thickness 0.05 mm. having a pencil hardness of 6H.
Patent GB-491678-A (GB)
Title: Improvements in immersion or under-water burners
IPC: F23D14/16
Filed: 1937-06-08
Abstract: 491,678. Immersion burners. SILESIA, VEREIN CHEMISCHER FABRIKEN. June 8, 1937, No. 15898. Convention date, Nov. 2, 1936. [Class 75 (i)] In an immersion burner for heating and evapor. ating liquids, a combustible mixture of gas or vapour and air is supplied through a pipe b for flameless combustion in a porous plate c disposed within a housing d, Fig. 1, which is open at the bottom and is surrounded by an inverted cup f, provided with perforations g for distributing the combustion gases in the liquid to be heated. Alternatively, the porous plate c, Fig. 2, is disposed in the mouth of the housing d, which projects upwardly into the inverted cup, the supply pipe b extending through the bottom h of the liquid container. The burner may be made of acid or alkali resistant material.
Patent GB-924449-A (GB)
Title: Pharmaceutical composition
Inventor: WAGNER JOHN GARNET
IPC: A61K9/30
Filed: 1959-05-08
Abstract: Medicaments protected by an enteric material by a process comprising coating with a thin film comprising calcite, a basic silicate, fuller's earth, diatomaceous earth, bentonite, kaolin, calamine or zinc oxide or mixtures thereof, the particle size of said materials being less than fifty microns, dispersed in a hydrolysed styrene maleic anhydride copolymer which is more than 50% hydrolysed.  It is preferred that the copolymer should have a molar ratio of about 1 maleic acid residue to from one to about four styrene residues.  The copolymer may be plasticized by compounds such as dibutyl phthalate, diethyl phthalate, dioctyl phthalate, polyethylene glycols and glyceryl mono-oleate, and it may be used as a non-toxic water-soluble salt e.g. the ammonium or alkali metal salt.  Other ethylenic units which may be present include acrylonitrile, acrylic acid, methacrylic acid, itaconic acid, vinyl chloride or vinylidene chloride.  The enteric material may be applied as a coating or formed as a capsule shell. Medicaments which may be coated include those specified in the parent Specification and also the adrenocortical steroids.
Patent GB-1080826-A (GB)
Title: Improvements in or relating to devices for producing and using acoustic vibrations
IPC: G10K11/02
Filed: 1965-04-14
Abstract: 1,080,826. Ultrasonic couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 14, 1965 [April 17, 1964], No.15947/65. Heading H4J. [Also in Division B1] Bouncing putty under pressure is used to couple a transducer to a receiver. A container 6 for a cleaning liquid is mounted on a pair of magnetostrictive members 1, 1<SP>1</SP>, there being an interposed layer 11 of bouncing putty. This may be a heated mixture of polydimethyl siloxane and boron trioxide, or the zinc salt of a liquid copolymer of butadiene and acrylic or methacrylic acid. The weight of the container may be sufficient to provide the required pressure on the layer 11. Alternatively the container 6 is clamped to a plate 9 by spring-loaded bolts 5. A layer 10 of foamed rubber provides a reflective layer. The transducer operates at 20-40 kc/s.
Patent GB-413853-A (GB)
Title: Improvements in sensitive layers for photographic printing processes
IPC: G03C1/725
Filed: 1933-06-02
Abstract: 413,853. Photographic sensitive materials. KODAK, Ltd., Kingsway, London.-(Assignees of Hickman, K. C. D., and Staib, L. A. ; Kodak Park, Rochester, New York, U.S.A.) June 2, 1933, No. 15954. Convention date, June 2, 1932. [Class 98 (ii).] A sensitive layer for positive printing processes comprises a dark-coloured metallic sulphide which is bleached on oxidation, a substance which possesses oxidizing properties under the action of light, and an acid which is not readily evaporated. Suitable sulphides are those of lead, mercury, silver, nickel, bismuth, and copper, and the oxidizing substance may be hexammine cobaltic chloride, nitrosopentammine cobaltic chloride or trinitro-triammine cobalt. The layer may be prepared by mixing a suitable metal salt, e.g. lead acetate, in gelatin with a solution in gelatin of sodium sulphide, the resulting solution being allowed to set, washed, shredded, and remelted, and may be coated with a solution of hexammine cobaltic chloride mixed with citric acid and glycerine. Alternatively, the solution of oxidizing substance with citric acid and glycerine may be added to the emulsion. The glycerine may be replaced by other hygroscopic substances or may be omitted if the layer is humidified before use. Specification 372,637 is referred to.
Patent GB-1130232-A (GB)
Title: Apparatus for stripping brussels sprouts from their stalks
Inventor: EDMONDS PERCY JAMES
IPC: A23N15/01
Filed: 1966-04-12
Abstract: 1,130,232. Separating Brussels sprouts from their stalks. P. J. EDMONDS Ltd. 16 June, 1967 [12 April, 1966], No. 16010/66. Heading A4C. A machine for stripping brussels sprouts from the stalks of a parent plant comprises two circular apertures 13 of different diameters which permit the passage of the stalks but not of the sprouts, concentrically surrounded by a short frusto-conical sleeve 14, capable of limited movement in the plane of the plate 6 to allow for the stripping of bent stalks, two pairs of spring loaded rollers 25 and 26, the outer peripheral surfaces of each pair defining between them a nip 44 adapted to grip and pull the stalk through the said apertures, with at least one of them in the general form of a paddle. The said paddles consist of a central disc 39, made longitudinally and rotationally fast with its axle by means of a pair of coaxial frusto-conical hubs (40 Figs. 4 and 5 not shown) disposed back to back with the wider ends clamping the disc and the narrow ends secured to the axle, rings 41 positioned at each side of said disc and being of larger diameter than the disc 1 and corrugated blades 42 extending between circumferentially spaced positions on the disc and each of the rings so arranged that the blades on one side of the disc are staggered with respect to the blades extending from the disc to the ring at the other side thereof, and the outer gripping edge of the inner end of each blade is radially proud of the disc. This method of constructing the paddles allows only material removed from the stalk after it has passed through one of the apertures to fall between the blades of the lower roller where it is deflected by the inclined surface of the hub through the outside rings to a position where it cannot impair the gripping and pulling operation. Small leaves and undersized sprouts are trimmed off by means of two cylindrical saws 8 of different diameters projecting from the front face of a housing (7 Fig. 1 not shown) drawn by means of an arrangement of gears from the main motor 17. After stripping the stalks are chopped into pieces by cutters 51 mounted at the end of a three bladed rotor 50 which cross the rear of both pipes 45 into which the stripped stalks are fed by the rollers, the pieces being directed downwards by the casing 64. Reference has been directed by the Comptroller to Specification 956,028:
Patent GB-476729-A (GB)
Title: Improvements in and relating to the driving of a machine by two prime movers
IPC: F02B37/10
Filed: 1937-06-10
Abstract: 476,729. Driving-gear for pumps. JUNKERS FLUGZEUGUND MOTORENWERKE AKT.-GES. June 10, 1937, No. 16139. Convention date, June 15, 1936. [Class 7 (ii)] [Also in Group XXVI] A machine C such as the scavenging or charging blower of an internalcombustion engine is driven by an exhaust turbine B which may be intermittently inoperative, and by a second prime mover A which may be an electric motor. The connection comprises an epicyclic gear 3, 4, 5 and a free-wheel clutch 11 so arranged that the turbine B, while it is inoperative, is carried round in its normal direction of rotation and is ready to take up load. Several modifications of the arrangement of the prime movers and gearing are described. Fig. 9 shows an arrangement in which the exhaust from the reciprocating engine M is led to an exhaust turbine B\ this turbine and the engine shaft 65 being both arranged to drive the blower C1 through differential gearing and a free-wheel clutch.
Patent GB-1504946-A (GB)
Title: High frequency modulator circuit
IPC: H03C1/36
Filed: 1975-04-18
Abstract: 1504946 Amplitude modulators; crystal oscillators SONY CORP 18 April 1975 [30 May 1974] 16158/75 Headings H3R and H3T An amplitude modulator suitable for modulating a carrier by a video signal comprises a frequency multiplier 30 responsive to a base oscillating signal from 10 to provide oppositely phased carrier signals at a frequency multiple and a modulating circuit including second and third differential amplifiers 60, 80 for modulating the carrier signals differently at least one of them by input information supplied at 54, the carrier signals being applied differentially to each of 60, 80 and the differential amplifiers 60, 80 having the output terminals of one coupled with oppositely phased ones of the other. Modulation signals of the same type may be applied to input terminals 54, 74 of the differential amplifiers 60, 80 with the operational currents supplied by 53, 73 being controlled differently. Alternatively, the modulation-signals may be of different types, e.g. video and audio signals or one of them may be an adjustable D.C. voltage to control the modulation percentage of the modulated output. Leakage components of the base oscillating signal from 10 appear in same phases at the output terminals of the multiplier 30 and are suppressed by the differential operation of the amplifiers 60, 80. A crystal oscillator of the Colpitts type comprises a crystal 24 and a differential amplifier 20, for deriving differential outputs at the collectors of transistors 11, 12.
Patent GB-796959-A (GB)
Title: Improvements in or relating to the treatment of subterranean formations
Inventor: TAYLOR MAURICE
IPC: E02D5/46
Filed: 1955-06-06
Abstract: 796,959. Soil stabilization. CEMENTATION CO., Ltd. May 16, 1956 [June 6, 1955], No. 16201/55. Class 68(1) Piles are produced in situ to stabilize soil by drilling a bore of smaller diameter than the pile to be produced. After the drill has been withdrawn a pipe is lowered into the hole. From the leading end of the pipe can issue at an angle to the axis of the hole a single jet of grouting medium. The tube is rotated and withdrawn from the bottom of the hole so that the jet impinges on, erodes and mixes with the soil of the walls of the hole. Thus a cavity of larger diameter than the hole is formed and is filled with a mixture of soil and grouting medium which sets to form a pile.